A structure capable of improving flare problem of vehicle-mounted camera

Abstract

The utility model provides a structure that can improve vehicle camera flare problem relates to optical camera technical field, the edge of PCBA board is provided with the recessed support on upside, the middle of recessed support is provided with the light transmission CG board, the upside of recessed support is provided with camera light control adjustment subassembly, the upside of recessed support is welded with the stepped light shield outer cover, the upside of stepped light shield outer cover is welded with light guide lens barrel, the stepped light shield outer cover passes through three stages and gradually contracts structure, effectively blocks the direct incidence path of external stray light, avoids the multiple reflection of light in the internal cavity, and the matte coating of stepped light shield outer cover and recessed support inner wall can effectively absorb residual stray light, reduces internal reflection intensity, and black matte nanometer composite material has high light absorption rate and low reflectivity characteristics, further restrains light scattering, thereby cooperates recessed structure and ladder light shield design, improves the anti flare ability comprehensively, ensures the clear and stable imaging.

Description

Technical Field

[0001] This utility model relates to the field of optical camera technology, and in particular to a structure that can improve the flare problem of vehicle cameras. Background Technology

[0002] The flare problem in vehicle cameras occurs when strong light (such as sunlight or headlights) enters the lens and is reflected / scattered multiple times by the lens and the inner wall of the lens barrel. This creates light spots, halos, streaks, or a whitening effect on the image, which can affect ADAS functions and reversing visibility. It is caused by the lack of anti-reflective treatment on the lens, defects in the light-shielding structure, or the failure to effectively filter and block non-imaging light such as strong external light, resulting in stray light interfering with effective imaging.

[0003] With the rapid development of automotive driver assistance systems and autonomous driving technology, vehicle cameras, as one of the key sensors, directly affect the accuracy of a vehicle's perception of its surroundings. However, in real-world applications, flare phenomena caused by strong light (such as direct sunlight or streetlight reflections) can lead to issues like haloing, ghosting, and reduced contrast in images. Conventional vehicle cameras often use simple hoods with glass lenses to reduce glare, but single-structure glare filtering is ineffective. Furthermore, stray light entering the camera's optical path can easily cause internal light source refraction, and the refracted light can also be mirrored through the camera's internal walls, resulting in a significant flare effect even under complex lighting conditions.

[0004] Therefore, we provide a structure that can improve the flare problem of automotive cameras and solve the above problems. Utility Model Content

[0005] To overcome the above deficiencies, this utility model provides a structure that can improve the flare problem of vehicle cameras, aiming to solve the aforementioned issues.

[0006] To achieve the above objectives, this utility model is implemented through the following technical solution: It includes a PCBA board, on the upper side of which a chip is mounted. A gold wire is soldered between the PCBA board and the chip, and the gold wire is wrapped with an adhesive. Components are disposed on the upper outer end of the PCBA board. A recessed bracket is disposed on the upper edge of the PCBA board. A light-transmitting CG plate is disposed in the middle of the recessed bracket. A camera light control adjustment component is disposed on the upper side of the recessed bracket. A stepped light-shielding cover is soldered to the upper side of the recessed bracket. A light guide tube is soldered to the upper side of the stepped light-shielding cover. A lens cap is soldered to the upper side of the light guide tube. A lens protective glass is disposed in the middle of the lens cap.

[0007] Preferably, the concave bracket is welded to the PCBA board, and the light-transmitting CG plate is connected to the concave bracket by a slot, forming a concave structure with the light-transmitting CG plate and the concave bracket.

[0008] Preferably, the stepped light-shielding cover has a stepped structure, and the stepped light-shielding cover is progressively recessed in three stages.

[0009] Preferably, the inner walls of the stepped light-shielding cover and the recessed support are coated with a matte coating, and the material of the matte coating is a black matte nano-composite material.

[0010] Preferably, a light-shielding lens is bonded to the middle of the stepped light-shielding cover, and both the upper and lower sides of the light-shielding lens are coated with an anti-reflective coating.

[0011] Preferably, the light-transmitting CG plate, the light-shielding lens, and the inner light-shielding cylinder are distributed along the same vertical axis, and the light-transmitting CG plate, the light-shielding lens, and the inner light-shielding cylinder constitute a coaxial light-shielding system.

[0012] Preferably, the inner side of the light guide tube is connected to an inner light shield tube, the inner light shield tube having a honeycomb structure, the honeycomb structure extending through the entire inner light shield tube.

[0013] This invention provides a structure that can improve the flare problem of vehicle-mounted cameras. Compared with the prior art, it has the following advantages:

[0014] 1. This structure can improve the flare problem of vehicle cameras. When needed, the stepped light shield effectively blocks the direct incident path of external stray light through a three-stage progressively recessed structure, avoiding multiple reflections of light in the internal cavity. The matte coating on the inner wall of the stepped light shield and the concave bracket can effectively absorb residual stray light and reduce the internal reflection intensity. The black matte nanocomposite material has high light absorption and low reflectivity, further suppressing light scattering. Thus, in conjunction with the concave structure and stepped light shield design, it comprehensively improves anti-flare capability and ensures clear and stable imaging.

[0015] 2. This structure, which can improve the flare problem of vehicle cameras, features a stepped light-shielding cover with an internal light-shielding lens. The lens, coated with an anti-reflective coating, significantly reduces the reflectivity of light on the lens surface, suppresses stray light caused by multiple refractions and reflections, and improves the contrast of the optical system. The honeycomb structure of the inner light-shielding tube restricts the propagation of non-axial light through multiple channels, effectively scattering and absorbing stray light incident at an angle, reducing the superposition effect of internal reflection and transmission. The light-transmitting CG plate, the light-shielding lens, and the inner light-shielding tube are vertically distributed along the same axis, ensuring that the light propagation path is strictly limited to the designed optical path. This effectively blocks stray light deviating from the main optical axis from entering the imaging area, further enhancing the hierarchical synergy of the light-shielding system. Combined with the matte coating and stepped structure, it achieves precise control over the entire optical path, significantly reducing flare and ghosting phenomena, and ensuring high image contrast and accurate color reproduction. Attached Figure Description

[0016] Figure 1 This is a schematic diagram of the overall appearance structure of this utility model;

[0017] Figure 2 This is a schematic diagram of the overall disassembled structure of this utility model;

[0018] Figure 3 This is a bottom-view, disassembled structural diagram of the concave bracket and stepped light-shielding cover of this utility model.

[0019] Figure 4 This is a schematic diagram of the PCBA board and components of this utility model;

[0020] Figure 5 This is a schematic diagram of the overall cross-section of the present invention.

[0021] The following are the labels in the diagram: 1. PCBA board; 2. Chip; 3. Gold wire; 4. Colloid; 5. Component; 6. Recessed bracket; 7. Transparent CG plate; 8. Camera light control adjustment component; 801. Stepped light shield; 802. Matte coating; 803. Light shield lens; 804. Anti-reflective coating; 805. Light guide tube; 806. Inner light shield tube; 807. Lens cap; 808. Lens protective glass. Detailed Implementation

[0022] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0023] Please see Figure 1-5This utility model provides a technical solution: a structure that can improve the flare problem of vehicle cameras, including a PCBA board 1, a chip 2 mounted on the upper side of the PCBA board 1, a gold wire 3 welded between the PCBA board 1 and the chip 2, an outer layer of colloid 4 wrapped around the gold wire 3, a component 5 disposed on the upper outer end of the PCBA board 1, a recessed bracket 6 disposed on the upper edge of the PCBA board 1, a light-transmitting CG plate 7 disposed in the middle of the recessed bracket 6, a camera light control adjustment component 8 disposed on the upper side of the recessed bracket 6, a stepped light shield 801 welded to the upper side of the recessed bracket 6, a light guide tube 805 welded to the upper side of the stepped light shield 801, a lens cap 807 welded to the upper side of the light guide tube 805, and a lens protective glass 808 disposed in the middle of the lens cap 807.

[0024] The recessed bracket 6 is welded to the PCBA board 1, and the light-transmitting CG board 7 is connected to the recessed bracket 6 by a slot. The light-transmitting CG board 7 and the recessed bracket 6 form a concave structure.

[0025] When needed, the concave support 6, being a concave structure, effectively confines the light entering through the translucent CG plate 7, thus achieving a light-blocking effect at the very end and reducing light reflection to prevent flare.

[0026] The stepped shading cover 801 has a stepped structure, with the stepped shading cover 801 receding inward in three stages.

[0027] When needed, the stepped light-shielding cover 801 effectively blocks the direct incident path of external stray light through a three-stage progressively recessed structure, preventing light from being reflected multiple times in the internal cavity.

[0028] The inner walls of the stepped light-shielding cover 801 and the recessed bracket 6 are both coated with a matte coating 802, which is made of black matte nano-composite material.

[0029] When needed, the stepped light-shielding cover 801 and the matte coating 802 on the inner wall of the concave support 6 can effectively absorb residual stray light and reduce internal reflection intensity. The black matte nanocomposite material has high light absorption and low reflectivity, which further suppresses light scattering. Thus, in conjunction with the concave structure and stepped light-shielding design, the anti-flare capability is comprehensively improved, ensuring clear and stable imaging.

[0030] A light-shielding lens 803 is bonded to the middle of the stepped light-shielding cover 801, and both the upper and lower sides of the light-shielding lens 803 are coated with an anti-reflective coating 804.

[0031] When needed, the light-shielding lens 803 inside the top of the stepped light-shielding cover 801, through the anti-reflective coating 804 applied to its surface, can significantly reduce the reflectivity of light on the lens surface, suppress stray light phenomena caused by multiple refractions and reflections, and improve the contrast of the optical system.

[0032] The light-transmitting CG plate 7, the light-shielding lens 803, and the inner light-shielding cylinder 806 are arranged in a vertical line along the same axis, forming a coaxial light-shielding system.

[0033] When needed, the light-transmitting CG plate 7, the light-shielding lens 803, and the inner light-shielding tube 806 are vertically distributed along the same axis, ensuring that the light propagation path is strictly limited to the designed optical path, effectively blocking stray light deviating from the main optical axis from entering the imaging area, further enhancing the hierarchical synergistic effect of the light-shielding system. Combined with the matte coating 802 and the stepped structure, it achieves precise control over the entire optical path, significantly reducing flare and ghosting phenomena, and ensuring high image contrast and accurate color reproduction.

[0034] The inner side of the light guide tube 805 is connected to the inner light shield tube 806 via a slot. The inner light shield tube 806 has a honeycomb structure, which runs through the entire inner light shield tube 806.

[0035] When needed, the honeycomb structure of the inner light-shielding cylinder 806 restricts the propagation of non-axial light through porous channels, effectively scattering and absorbing stray light incident at an angle, and reducing the superposition effect of internal reflection and transmission.

[0036] Working principle: When needed, PCBA board 1 is installed in the required position. Chip 2 and PCBA board 1 are connected by gold wire 3, and the gold wire 3 is fixed by adhesive 4. After installation, the light-transmitting CG plate 7 is fixed to the inner top of the concave bracket 6. After the light-transmitting CG plate 7 is tightly attached to the concave bracket 6, the stepped light-shielding cover 801 is fixed to the inner top of the light-shielding lens 803. Finally, the light guide tube 805 is fixed to the upper side of the stepped light-shielding cover 801, and the honeycomb structure inner light-shielding tube 806 is inserted into the light guide tube 805. Finally, the lens cap 807 is fixed to the upper side of the light guide tube 805 to fix the inner light-shielding tube 806.

[0037] After installation, when the light source enters the light guide tube 805 through the lens protective glass 808, the honeycomb structure of the inner light shield 806 first intercepts stray light incident at a large angle. Then, the light source passes through the honeycomb channel of the inner light shield 806 and passes through the light shield lens 803 along the main optical axis. At this time, the anti-reflective coating 804 on the surface of the light shield lens 803 further suppresses specular reflection, reduces light energy loss and stray light superposition. Then, the light source enters the interior of the stepped light shield cover 801. The matte coating 802 on its inner wall works in conjunction with the stepped structure to absorb and scatter residual stray light step by step, preventing multiple reflections. Finally, the light source passes through the light-transmitting CG plate 7 and enters the concave bracket 6. It is further absorbed and scattered by the matte coating 802 on the inner wall. Finally, the light source reaches the photosensitive area of ​​the chip 2. This completes the use of a structure that can improve the flare problem of vehicle cameras.

[0038] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A structure that can improve the flare problem of vehicle-mounted cameras, comprising a PCBA board (1), characterized in that: A chip (2) is mounted on the upper side of the PCBA board (1). A gold wire (3) is soldered between the PCBA board (1) and the chip (2). The gold wire (3) is wrapped with a colloid (4). A component (5) is provided on the upper outer end of the PCBA board (1). A recessed bracket (6) is provided on the upper edge of the PCBA board (1). A light-transmitting CG plate (7) is provided in the middle of the recessed bracket (6). A camera light control adjustment component (8) is provided on the upper side of the recessed bracket (6). A stepped light shield (801) is soldered on the upper side of the recessed bracket (6). A light guide tube (805) is soldered on the upper side of the stepped light shield (801). A lens cover (807) is soldered on the upper side of the light guide tube (805). A lens protective glass (808) is provided in the middle of the lens cover (807).

2. The structure according to claim 1 that can improve the flare problem of vehicle-mounted cameras, characterized in that, The concave bracket (6) is welded to the PCBA board (1), and the light-transmitting CG plate (7) is connected to the concave bracket (6) by a slot. The light-transmitting CG plate (7) and the concave bracket (6) form a concave structure.

3. The structure according to claim 1 that can improve the flare problem of vehicle-mounted cameras, characterized in that, The stepped light-shielding cover (801) has a stepped structure, and the stepped light-shielding cover (801) is recessed inward in three stages.

4. The structure according to claim 1 that can improve the flare problem of vehicle-mounted cameras, characterized in that, The inner walls of the stepped light-shielding cover (801) and the recessed support (6) are coated with a matte coating (802), and the material of the matte coating (802) is a black matte nano-composite material.

5. A structure according to claim 1 that can improve the flare problem of vehicle-mounted cameras, characterized in that, The stepped light-shielding cover (801) has a light-shielding lens (803) bonded to the middle, and the upper and lower sides of the light-shielding lens (803) are coated with an anti-reflective coating (804).

6. A structure according to claim 1 that can improve the flare problem of vehicle-mounted cameras, characterized in that, The light-transmitting CG plate (7), the light-shielding lens (803), and the inner light-shielding cylinder (806) are arranged along the same vertical axis, and the light-transmitting CG plate (7), the light-shielding lens (803), and the inner light-shielding cylinder (806) constitute a coaxial light-shielding system.

7. A structure according to claim 1 that can improve the flare problem of vehicle-mounted cameras, characterized in that, The inner side of the light guide tube (805) is connected to an inner light shield tube (806) via a slot. The inner light shield tube (806) has a honeycomb structure and the honeycomb structure runs through the entire inner light shield tube (806).

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